Precise error bounds for numerical approximations of fractional HJB equations

I Chowdhury, ER Jakobsen - IMA Journal of Numerical Analysis, 2024 - academic.oup.com
We prove precise rates of convergence for monotone approximation schemes of fractional
and nonlocal Hamilton–Jacobi–Bellman equations. We consider diffusion-corrected …

The master equation for mean field game systems with fractional and nonlocal diffusions

ER Jakobsen, A Rutkowski - arXiv preprint arXiv:2305.18867, 2023 - arxiv.org
We prove existence and uniqueness of classical solutions of the master equation for mean
field game (MFG) systems with fractional and nonlocal diffusions. We cover a large class of …

Heat kernel estimates for symmetric jump processes with mixed polynomial growths

J Bae, J Kang, P Kim, J Lee - The Annals of Probability, 2019 - JSTOR
In this paper, we study the transition densities of pure-jump symmetric Markov processes in
ℝ d, whose jumping kernels are comparable to radially symmetric functions with mixed …

Transition density estimates for diagonal systems of SDEs driven by cylindrical -stable processes

T Kulczycki, M Ryznar - arXiv preprint arXiv:1711.07539, 2017 - arxiv.org
We consider the system of stochastic differential equation $ dX_t= A (X_ {t-})\, dZ_t $, $ X_0=
x $, driven by cylindrical $\alpha $-stable process $ Z_t $ in $\mathbb {R}^ d $. We assume …

[HTML][HTML] On fractional and nonlocal parabolic mean field games in the whole space

O Ersland, ER Jakobsen - Journal of Differential Equations, 2021 - Elsevier
Abstract We study Mean Field Games (MFGs) driven by a large class of nonlocal, fractional
and anomalous diffusions in the whole space. These non-Gaussian diffusions are pure jump …

Schauder estimates for equations associated with Lévy generators

F Kühn - Integral Equations and Operator Theory, 2019 - Springer
We study the regularity of solutions to the integro-differential equation Af-λ f= g A f-λ f= g
associated with the infinitesimal generator A of a Lévy process. We show that gradient …

[HTML][HTML] Semigroup properties of solutions of SDEs driven by Lévy processes with independent coordinates

T Kulczycki, M Ryznar - Stochastic Processes and their Applications, 2020 - Elsevier
We study the stochastic differential equation d X t= A (X t−) d Z t, X 0= x, where Z t=(Z t (1),…,
Z t (d)) T and Z t (1),…, Z t (d) are independent one-dimensional Lévy processes with …

Harnack inequalities and Hölder estimates for fully nonlinear integro-differential equations with weak scaling conditions

S Kitano - Journal of Differential Equations, 2023 - Elsevier
Harnack inequalities and Hölder estimates for fully nonlinear integro-differential equations with
weak scaling conditions - ScienceDirect Skip to main contentSkip to article Elsevier logo …

Bound states and heat kernels for fractional-type Schrödinger operators with singular potentials

T Jakubowski, K Kaleta, K Szczypkowski - … in Mathematical Physics, 2023 - Springer
We consider non-local Schrödinger operators H=-LV in L 2 (R d), d⩾ 1, where the kinetic
terms L are pseudo-differential operators which are perturbations of the fractional Laplacian …

[HTML][HTML] Progressive intrinsic ultracontractivity and heat kernel estimates for non-local Schrödinger operators

K Kaleta, RL Schilling - Journal of Functional Analysis, 2020 - Elsevier
We study the long-time asymptotic behaviour of semigroups generated by non-local
Schrödinger operators of the form H=− L+ V; the free operator L is the generator of a …